Medium
The molar specific heat of an ideal gas at constant pressure and constant volume is $C_{p}$ and $C_{v}$ respectively. If $R$ is the universal gas constant and $\gamma = \frac{C_p}{C_v}$,then $C_v =$
- A$\frac{1-\gamma}{1+\gamma}$
- B$\frac{1+\gamma}{1-\gamma}$
- C$\frac{\gamma-1}{R}$
- D$\frac{R}{\gamma-1}$
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